... ng hn silic tinh th PA: D Cõu HH 1111 NCH Silic v nhụm u phn ng c vi dung dch cỏc cht dóy sau: A HCl, HF B NaOH, KOH C Na2CO3, KHCO3 D BaCl2, AgNO3 PA: B Cõu HH 1111 NCB Silic ioxit (SiO2) tan chm ... PA: C 14 Cõu 10 HH 1111 NCH Silic phn ng vi tt c cỏc cht nhúm : A O2, C, F2, Mg, HNO3, KOH B O2, C, Mg, HCl, NaOH C O2, C, Mg, F2, HCl, NaOH D O2, C, F2, Mg, NaOH PA: D Cõu 11 HH 1112 NCH Trong s cỏc ... phõn cu to ca PA: D Cõu 16 HH 1118 NCH Cụng thc phõn t ca cht cú thnh phn 88,89%C; 11, 11%H, cú lng mol phõn t M < 60g/mol l A C4H8 B C8H12 C C4H6 D C3H4 PA: C Cõu 17 HH 1118 NCH Khi tin hnh phõn tớch...